/****************************************************************************

**

** Copyright (C) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).

** All rights reserved.

** Contact: Nokia Corporation (developer.feedback@nokia.com)

**

** This file is part of the HbWidgets module of the UI Extensions for Mobile.

**

** GNU Lesser General Public License Usage

** This file may be used under the terms of the GNU Lesser General Public

** License version 2.1 as published by the Free Software Foundation and

** appearing in the file LICENSE.LGPL included in the packaging of this file.

** Please review the following information to ensure the GNU Lesser General

** Public License version 2.1 requirements will be met:

** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

**

** In addition, as a special exception, Nokia gives you certain additional

** rights.  These rights are described in the Nokia Qt LGPL Exception

** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

**

** If you have questions regarding the use of this file, please contact

** Nokia at developer.feedback@nokia.com.

**

****************************************************************************/

#include "hbnamespace_p.h"

#include <hbmessagebox.h>

#include "hbmessagebox_p.h"

#include <hbstyleoptionmessagebox.h>

#include <hbmainwindow.h>

#include <hbaction.h>

#include <hblineedit.h>

#include <hbscrollbar.h>

#include <hbscrollarea.h>

#include <QGraphicsItem>

#include <QGraphicsSceneMouseEvent>

#include <QTimer>

#include <QTextOption>

class HbStyle;

class HbMessageBoxEditor : public HbLineEdit

{

public:

	HbMessageBoxEditor(QGraphicsItem* parent =0) : HbLineEdit(parent)

	{

        setReadOnly(true);

        setCursorVisibility(Hb::TextCursorHidden);

		HbScrollArea *scroll = scrollArea();

		scroll->setVerticalScrollBarPolicy(HbScrollArea::ScrollBarAsNeeded);

		clearContextMenuFlag(Hb::ShowTextContextMenuOnLongPress);

		clearContextMenuFlag(Hb::ShowTextContextMenuOnSelectionClicked);

		primitive(HbStyle::P_LineEdit_frame_normal)->setVisible(false);		

	}

	HbScrollBar * getScrollBar() const

	{

		HbScrollArea *scroll = scrollArea();

		return scroll->verticalScrollBar();

	}

	void focusInEvent(QFocusEvent * event)

	{

	}

};

class HbMessageBoxContentWidget : public HbWidget

{

    Q_OBJECT

public:

    HbMessageBoxPrivate *d;

    HbMessageBoxEditor *mTextEdit;

    QGraphicsItem *mIconItem;

    HbMessageBoxContentWidget(HbMessageBoxPrivate *priv,

        QGraphicsItem* parent =0) : HbWidget(parent),d(priv),mTextEdit(0),mIconItem(0)

    {

        mTextEdit = new HbMessageBoxEditor(this);

        mIconItem = style()->createPrimitive(HbStyle::P_MessageBox_icon, this);

        setProperty("hasIcon",true);

        HbStyle::setItemName(mTextEdit, "text");

        HbStyle::setItemName(mIconItem, "icon");

    }

    enum { Type = HbPrivate::ItemType_MessageNoteContentWidget };

    int type() const { return Type; }

};

/*

    constructor

*/

HbMessageBoxPrivate::HbMessageBoxPrivate() :

    HbDialogPrivate(),

    mIcon(),

    mIconAlignment(Qt::AlignCenter),

	mMessageBoxContentWidget(0),

	mMessageBoxType(HbMessageBox::MessageTypeInformation),

{

}

/*

    destructor

*/

HbMessageBoxPrivate::~HbMessageBoxPrivate()

{

}

/*

    init()

*/

void HbMessageBoxPrivate::init()

{

    Q_Q(HbMessageBox);

    switch(mMessageBoxType) {

    case HbMessageBox::MessageTypeInformation:

	case HbMessageBox::MessageTypeWarning:

		mMessageBoxContentWidget = new HbMessageBoxContentWidget( this );

        q->setContentWidget( mMessageBoxContentWidget );

		q->setPrimaryAction(new HbAction(q->tr("OK"), q));

        break;

    case HbMessageBox::MessageTypeQuestion:

		mMessageBoxContentWidget = new HbMessageBoxContentWidget( this );

        q->setContentWidget( mMessageBoxContentWidget );

		q->setDismissPolicy(HbPopup::NoDismiss);

		q->setTimeout(HbPopup::NoTimeout);       

		q->setPrimaryAction(new HbAction(q->tr("Yes"), q));

        q->setSecondaryAction(new HbAction(q->tr("No"), q));

        break;

    }

}

/*!

    @beta

    \class HbMessageBox

    \brief HbMessageBox is a graphics widget which shows text message and an icon.

    HbMessageBox is derived from HbDialog that provides most of functionality such as

    modality, and timeouts.

    \enum HbMessageBox::MessageBoxType

    \value \b MessageTypeInformation creates a dialog which will have some information for the user.

		MessageBox will have Ok button and will not be auto dissmissed. The user need to press

		Ok to dismiss.

    \value \b MessageTypeWarning is a simple message dialog with warning icon. The user needs to press Ok

        to dismiss. 

    \value \b MessageTypeQuestion Shows a message dialog with question icon. The user can either confirm or

		reject the dialog. 

*/

/*!

    @beta

    Constructor.

    \param parent An optional parameter.

*/

HbMessageBox::HbMessageBox(MessageBoxType type,QGraphicsItem *parent) : 

    HbDialog(*new HbMessageBoxPrivate, parent)

{

    Q_D(HbMessageBox);

    d->mMessageBoxType = type;

    d->q_ptr = this;

    d->init();

}

/*!

    @beta

    Constructs a new HbMessageBox with \a text and \a parent.

 */

HbMessageBox::HbMessageBox(const QString &text,MessageBoxType type, QGraphicsItem *parent)

    : HbDialog(*new HbMessageBoxPrivate, parent)

{

    Q_D(HbMessageBox);

    d->mMessageBoxType = type;

    d->q_ptr = this;

	d->init();

	d->mMessageBoxContentWidget->mTextEdit->setText(text);

}

/*!

    @beta

    destructor

*/

HbMessageBox::~HbMessageBox()

{

}

/*!

    \internal

 */

HbMessageBox::HbMessageBox(HbMessageBoxPrivate &dd, QGraphicsItem *parent) : 

    HbDialog(dd, parent)

{

    Q_D(HbMessageBox);

    d->q_ptr = this;

    d->init();

}

/*!

    Provides access to primitives of HbMessageBox. 

    \param primitive is the type of the requested primitive. The available 

*/

QGraphicsItem *HbMessageBox::primitive(HbStyle::Primitive primitive) const

{

    Q_D(const HbMessageBox);

    switch (primitive) {

    }

}

/*!

    @beta

    \reimp

    Initializes \a option with the values from this HbMessageBox.

*/

void HbMessageBox::initStyleOption(HbStyleOptionMessageBox *option) const

{

    Q_D(const HbMessageBox);

    HbDialog::initStyleOption(option);

    option->icon = d->mIcon;

    option->iconAlignment = d->mIconAlignment;

    option->messageBoxType = d->mMessageBoxType;

}

/*!

    @beta

    updatePrimitives.

*/

void HbMessageBox::updatePrimitives()

{

    Q_D(HbMessageBox); 

        HbDialog::updatePrimitives();

    HbStyleOptionMessageBox option;

    initStyleOption(&option);

    if (d->mMessageBoxContentWidget->mIconItem) {

         style()->updatePrimitive(d->mMessageBoxContentWidget->mIconItem, HbStyle::P_MessageBox_icon, &option);

    }

}

/*!

    @beta

    Sets text of the messagebox.

*/

void HbMessageBox::setText(const QString &text)

{

    Q_D(HbMessageBox);

	if ( text !=  d->mMessageBoxContentWidget->mTextEdit->text() ) {

		d->mMessageBoxContentWidget->mTextEdit->setText(text);

    }

}

/*!

    @beta

    Returns text of the messagebox.

    \sa setText()

*/

QString HbMessageBox::text() const

{

    Q_D(const HbMessageBox);

	return d->mMessageBoxContentWidget->mTextEdit->text();

}

/*!

    @beta

*/

void HbMessageBox::setIcon(const HbIcon &icon)

{

    Q_D(HbMessageBox);

    if (icon != d->mIcon){

        d->mIcon = icon;

        if (d->mMessageBoxContentWidget->mIconItem) {

            HbStyleOptionMessageBox option;

            initStyleOption(&option);

            style()->updatePrimitive(d->mMessageBoxContentWidget->mIconItem, HbStyle::P_MessageBox_icon, &option);

        }

	}

}

/*!

    @beta

    Returns icon of the messagebox.

    \sa setIcon()

*/

HbIcon HbMessageBox::icon() const

{

    Q_D(const HbMessageBox);

    return d->mIcon;

}

/*!

*/

void HbMessageBox::setIconAlignment( Qt::Alignment align )

{

    Q_D(HbMessageBox);

    if (align != d->mIconAlignment){

        d->mIconAlignment = align;

        if (d->mMessageBoxContentWidget->mIconItem) {

            HbStyleOptionMessageBox option;

            initStyleOption(&option);

            style()->updatePrimitive(d->mMessageBoxContentWidget->mIconItem, HbStyle::P_MessageBox_icon, &option);

        }

    }

}

/*!

    @beta

    \param visible the visibility flag

*/

void HbMessageBox::setIconVisible(bool visible)

{

	Q_D(HbMessageBox);

	if(visible != d->mIconVisible) {

		if(visible) {

			d->mMessageBoxContentWidget->mIconItem->show();

			d->mMessageBoxContentWidget->setProperty("hasIcon",true);

		}

		else {

			d->mMessageBoxContentWidget->mIconItem->hide();

			d->mMessageBoxContentWidget->setProperty("hasIcon",false);

		}

		d->mIconVisible = visible;

		repolish();

	}

}

/*!

    @beta

    Returns the icon visibilty flag

*/   

bool  HbMessageBox::iconVisible() const

{

	Q_D(const HbMessageBox);

	return d->mIconVisible;

}

/*!

*/

Qt::Alignment HbMessageBox::iconAlignment() const

{

    Q_D(const HbMessageBox);

    return d->mIconAlignment;

}

/*!

*/

void HbMessageBox::mousePressEvent(QGraphicsSceneMouseEvent *event )

{

    HbDialog::mousePressEvent(event);

}

/*!

    This is a convenient function to show a default message box with the question and buttons specified.

    this will return true when first button is clicked. false on the second.

    a heading widget can be set ex:

    \code

        HbMessageBox::question("are you sure?","yes","no",new HbLabel("Delete Confirm"));

    \endcode

*/

bool HbMessageBox::question(const QString &questionText,

                                            const QString &primaryButtonText,

                                            const QString &secondaryButtonText,

                                            QGraphicsWidget *headWidget,

                                            QGraphicsScene *scene,

                                            QGraphicsItem *parent)

{	

    HbMessageBox *messageBox = new HbMessageBox(HbMessageBox::MessageTypeQuestion, parent);

    if (scene) {

        scene->addItem(messageBox);

    }

    messageBox->setText(questionText);

    HbAction *primaryAction = new HbAction(primaryButtonText);

    messageBox->setPrimaryAction(primaryAction);

    HbAction *secondaryAction = new HbAction(secondaryButtonText);

    messageBox->setSecondaryAction(secondaryAction);

    if(headWidget) {

        messageBox->setHeadingWidget(headWidget);

    }

    HbAction *action = messageBox->exec(); 

    if (action == messageBox->primaryAction() ){

       return true;

    }

    else {

       return false;

    }

}